1 / 23

Careers of People in Science: Issues of Power and Control

Careers of People in Science: Issues of Power and Control. Your Guests today. Santa Cruz Institute for Particle Physics SCIPP Prof. David Dorfan, Chair Physics Dept. Dr. Felix Rosenbaum, post-doc. UC Santa Cruz Department of Physics Dr. Charlie Crummer, Laboratory Manager.

filia
Download Presentation

Careers of People in Science: Issues of Power and Control

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Careers of People in Science: Issues of Power and Control

  2. Your Guests today Santa Cruz Institute for Particle Physics SCIPP • Prof. David Dorfan, Chair Physics Dept. • Dr. Felix Rosenbaum, post-doc UC Santa Cruz Department of Physics • Dr. Charlie Crummer, Laboratory Manager • (soon Dr.) Teela Pulliam, grad. Student • Colleen Milbury, Senior • Kamal Prasad, Senior • Brian Keeney, Junior

  3. Particle Astrophysics & Cosmology Teaching, Research, Outreach Condensed Matter Physics & Wave Propagation Teacher Programs Elementary Particle Physics

  4. Galaxy DNA Cell Atom Nucleus Electron microscope Accelerator SCIPP’s Research extends from the smallest particles to the largest structures in the Universe

  5. Graduate and Undergraduate Students conduct research in the SCIPP Laboratories …and have fun visiting SLAC http://scipp.ucsc.edu

  6. Program • Introduction & Jacob's Ladder • Safety First • Corona: • Zorro’s Sword • Lights without Cords • Facts on Lightning • Facts on Tesla Coil • Mystery Knight in Armor • Fighting Lightning • Bolt to the face • Sparks from the feet • Any Questions ?

  7. 1 Million Volts! DANGER • Normally you can't see, hear or smell electricity, but the Tesla Coil makes • Bright sparks • Loud crackling noise • The air smell bad (Ozone BRACE YOURSELF! SAFETY FIRST! • Distance at least 20 ft. • Computers, Gameboys, CD players, telephones to the back of the room – unplugged, switched off! • Hearing aids off, pacemakers out of room

  8. Zorro

  9. Lightning Jacob’s Ladder Corona Tesla Sparks are all related. Principle: Air becomes ionized, and therefore conducts electricity. Lot’s of it, so the current heats up the air, excites the atoms/molecules which emit light.

  10. Sparks to grounded sword Conductor to ground The Power of the Electro- Magnetic Field ! What about those lights without cords? What is happening with Zorro?

  11. Two important concepts: • Lightning • The Faraday Cage

  12. + + + + + + + + + + + + + + – – – – – – – – – – – – – – – – – – – – – – – – – – + – + – + + + + – – + + + – – + + + – + + – + – – + + + + + + – – – – + – + + + + + + + + + + + + + + + + + + + + + + + + How lightning works

  13. + + + + + + + + + + + + + + – – – – – – – – – – – – – + + + + + Safest place during a lightning storm is in a plane or car because it is a Faraday Cage The Faraday Cage Why aren't air planes in grave danger being so close to the clouds and all? Answer: They form a Faraday Cage i.e., they are surrounded by metal; if you are surrounded by metal you are safe the electricity flows around the outside

  14. Thomas “DC” Edison vs. • Tesla Revival • 271 web sites are dedicated to Nicola Tesla • Join the “Tesla Coil Web Ring” http://nav.webring.yahoo.com/hub?ring=teslaring&list Nicola “AC” Tesla

  15. 120 volt Outlet 14,000 volt Transformer 1 million volt Resonance circuit Principle of the Tesla Coil Ask your teachers about details! Voltage starts at 120 ends up at 1 million!

  16. Nicola Tesla as a Daredevil? • Double Exposure makes it safe!

  17. Physics Principle: Transformer Power out = Power in Power = Volt  Current Power out @14kV Where have you seen this before? Power in @120V

  18. SLAC GLAST Transformation of Energy • Similar to the Tesla Coil, accelerators convert energy into new forms • Visit the Stanford Linear Accelerator Center (SLAC): Electricity -> New particles • SCIPP works on BaBar : why we are made out of matter • In Space in black holes: • Matter -> Light, x-rays, “jets” • SCIPP works on GLAST Mission: • discover the most powerful accelerators in the universe

  19. Amplitude = Force M (f2natural – f2force) Physics Principle: Resonance A kick at the right frequency builds up and gets you sky-high!

  20. Mystery Knight Fighting Lightning Bolt to the Head Sparks from the feet

  21. Is Teela ok? Let’s check! The armored suit is safe! • It's a Faraday Cage – no electric field allowed inside Invisible current 1 Million Volt Electrical current flows on the OUTSIDE of a metal! Visible sparks Visible sparks Ground

  22. Fysiks is Phun! Questions? Ask after the show, e-mail, visit… You find our coordinates on the web http://scipp.ucsc.edu

  23. Thanks to our hosts: • All you students • Anne MacLachlan Say “Good bye” to Daniel Greenhouse, the brain behind the sparks He is an undergraduate at UC Santa Cruz. http://scipp.ucsc.edu

More Related